Zip code 21648: Madison, Maryland

Q: What city is zip code 21648?

21648 is assigned to Madison, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 21648 in?

21648 is in Dorchester County, Maryland.

Q: What is the population of 21648?

About 172 people live in 21648, according to the Census Bureau's American Community Survey.

Q: What zip codes are near 21648?

The closest zip codes to 21648 are 21669, 21677, 21622, 21613, 20657.

Residential delivery areaDorchester CountyEastern Time

Population

172

Small sample: rough estimates

Median household income

—

U.S. $81K

Median home value

$195K

U.S. $333K

Median rent

—

U.S. $1,413

Median age

61.4

U.S. 38.9

Land area

9.4 sq mi

18 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 21648

21648 is a rural zip code in Madison, Maryland (Dorchester County), covering 9.4 sq mi of land. About 172 people live here, or 18 per square mile. The median resident is 61.4 years old, compared with 38.9 nationally. With so few residents, the Census figures below are rough estimates with wide margins of error.

24.4% of residents live below the poverty line (U.S.: 12.5%). The median home value is $195,000. 91% of occupied homes are lived in by their owners.

13% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 23.7 minutes each way, and 0% of workers work from home. The most common jobs among working residents are in management; construction and repair; and cleaning and personal care.

How 21648 compares

Sorted from highest to lowest national percentile

Only about 172 people live here, so these survey estimates have wide margins of error.

Median age61.4
99th
U.S. 38.9 · MD 39.418th of 446 in MD
Broadband access100%
99th
StrengthU.S. 91% · MD 92.4%14th of 441 in MD
Rent-burdened renters100%
99th
WeaknessU.S. 51.1% · MD 51.5%12th of 404 in MD
Residents 65 and older35.5%
98th
U.S. 17.2% · MD 16.7%28th of 446 in MD
Homeownership rate91.4%
97th
StrengthU.S. 65.2% · MD 67.6%98th of 441 in MD
Housing vacancy21.3%
94th
U.S. 10.1% · MD 7.7%55th of 441 in MD
Poverty rate24.4%
91st
WeaknessU.S. 12.5% · MD 9.4%19th of 441 in MD
Veterans7.7%
74th
U.S. 6.2% · MD 6.8%183rd of 446 in MD
Income inequality (Gini)0.459
69th
U.S. 0.483 · MD 0.45681st of 438 in MD
Per capita income$42,655
57th
U.S. $44,673 · MD $52,979297th of 446 in MD
Median earnings per worker$48,250
50th
U.S. $49,666 · MD $61,200340th of 443 in MD
Self-employed workers9.2%
49th
U.S. 10% · MD 8.7%212th of 444 in MD
Foreign-born residents6.4%
36th
U.S. 14.1% · MD 16.6%220th of 446 in MD
Average commute23.7 min
34th
U.S. 26.4 min · MD 31.1 min372nd of 421 in MD
Diversity index28.3
21st
U.S. 61.4 · MD 67.7311th of 446 in MD
Median home value$195,000
20th
U.S. $332,700 · MD $419,900393rd of 421 in MD
Residents under 1817.4%
16th
U.S. 22% · MD 22.2%344th of 446 in MD
Bachelor's degree or higher13%
6th
WeaknessU.S. 35.7% · MD 43.4%419th of 445 in MD
Population density18/sq mi
2nd
U.S. 95/sq mi · MD 639/sq mi439th of 446 in MD
Population172
1st
U.S. 334,922,499 · MD 6,206,011433rd of 446 in MD
Work from home0%
1st
U.S. 15.1% · MD 19.3%430th of 444 in MD
Unemployment rate0%
1st
StrengthU.S. 5.2% · MD 4.9%411th of 444 in MD
Uninsured rate0%
1st
StrengthU.S. 8.4% · MD 6.3%411th of 444 in MD
Tech workers0%
1st
U.S. 3.8% · MD 6.4%402nd of 444 in MD
Healthcare workers0%
1st
U.S. 9.7% · MD 9%423rd of 444 in MD
Government workers5.3%
1st
U.S. 14.5% · MD 22.5%422nd of 444 in MD

Measure	21648	Dorchester	MD	U.S.	National percentile	Rank in MD
Median age	61.4	43.5	39.4	38.9	99th	18th of 446
Broadband accessStrength	100%	85.8%	92.4%	91%	99th	14th of 441
Rent-burdened rentersWeakness	100%	56%	51.5%	51.1%	99th	12th of 404
Residents 65 and older	35.5%	23%	16.7%	17.2%	98th	28th of 446
Homeownership rateStrength	91.4%	65.6%	67.6%	65.2%	97th	98th of 441
Housing vacancy	21.3%	17.6%	7.7%	10.1%	94th	55th of 441
Poverty rateWeakness	24.4%	17.1%	9.4%	12.5%	91st	19th of 441
Veterans	7.7%	7.9%	6.8%	6.2%	74th	183rd of 446
Income inequality (Gini)	0.459	0.470	0.456	0.483	69th	81st of 438
Per capita income	$42,655	$35,605	$52,979	$44,673	57th	297th of 446
Median earnings per worker	$48,250	$43,263	$61,200	$49,666	50th	340th of 443
Self-employed workers	9.2%	12%	8.7%	10%	49th	212th of 444
Foreign-born residents	6.4%	4.5%	16.6%	14.1%	36th	220th of 446
Average commute	23.7 min	26.9 min	31.1 min	26.4 min	34th	372nd of 421
Diversity index	28.3	56.2	67.7	61.4	21st	311th of 446
Median home value	$195,000	$262,400	$419,900	$332,700	20th	393rd of 421
Residents under 18	17.4%	21%	22.2%	22%	16th	344th of 446
Bachelor's degree or higherWeakness	13%	19.4%	43.4%	35.7%	6th	419th of 445
Population density	18/sq mi	61/sq mi	639/sq mi	95/sq mi	2nd	439th of 446
Population	172	32,754	6,206,011	334,922,499	1st	433rd of 446
Work from home	0%	7.3%	19.3%	15.1%	1st	430th of 444
Unemployment rateStrength	0%	5.7%	4.9%	5.2%	1st	411th of 444
Uninsured rateStrength	0%	5.5%	6.3%	8.4%	1st	411th of 444
Tech workers	0%	2.1%	6.4%	3.8%	1st	402nd of 444
Healthcare workers	0%	10.4%	9%	9.7%	1st	423rd of 444
Government workers	5.3%	19.8%	22.5%	14.5%	1st	422nd of 444

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

12%

5–17

11%

18–24

25–34

35–44

13%

45–54

20%

55–64

23%

65–74

13%

75+

Median age

61.4

Under 18

17.4%

65 and over

35.5%

Race and ethnicity

White84%
Black2%
Hispanic3%
Asian6%
Native American0%
Pacific Islander0%
Other3%
Multiracial2%

Diversity index

28.3

U.S. 61.4

Foreign-born

6.4%

U.S. 14.1%

Born in state

79.7%

Language spoken at home (households)

English only

93%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 70
Average household size: 2.3
Family households: 92.9%
Married couples: 84.3%
Living alone: 7.1%
Veterans (of adults): 7.7%
Male / female: 55% / 45%

Income and poverty

Household income distribution

<$25k

16%

$25–50k

41%

$50–75k

$75–100k

$100–150k

$150–200k

16%

$200k+

20%

Median household income

21648

—

Dorchester Co.

$61,839

Maryland

$103,678

United States

$80,734

Per capita income

$42,655

U.S. $44,673

Poverty rate

24.4%

U.S. 12.5%

Households earning $150K+

35.7%

U.S. 23%

Income inequality (Gini)

0.459

U.S. 0.483

Housing

Median home value

21648

$195,000

Dorchester Co.

$262,400

Maryland

$419,900

United States

$332,700

Median gross rent

21648

—

Dorchester Co.

$1,032

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

94%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 89
Owner-occupied: 91.4%
Vacant: 21.3%
Median year built: 1974
Median rooms: 5.2
Renters paying 30%+ of income: 100%
Renters paying 50%+ of income: 100%
Home value to income: —

Work and commute

How people get to work

Drove alone

100%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

10–19

65%

20–29

30–44

21%

45–59

60+

13%

Average commute

23.7 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

51.7%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

62%

Construction and repair

18%

Cleaning and personal care

13%

Engineering and science

Business and finance

Computer and math

Education

Legal and social services

Arts, media and sports

Healthcare

Police and fire

Food service

Sales

Office and admin

Farming, fishing and forestry

Production

Transportation and moving

Industries

Restaurants and hotels

28%

Construction

25%

Retail

16%

Finance, insurance and real estate

12%

Manufacturing

Professional and technical services

Education

Health care and social assistance

Transportation, warehousing and utilities

Public administration

Admin, support and management

Other services

Wholesale

Information

Arts and recreation

Agriculture and mining

Median earnings per worker

$48,250

U.S. $49,666

Self-employed

9.2%

U.S. 10%

Government workers

5.3%

U.S. 14.5%

Nonprofit workers

U.S. 8.8%

Median earnings by type of work

Type of work	21648	U.S.
Management, business, science and arts	$72,083	$74,888
Service	—	$26,804
Sales and office	—	$40,476
Construction and maintenance	—	$49,199
Production and transportation	—	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

36%

Some college

42%

Associate's

Bachelor's

Graduate

High school graduate or higher: 95.9%
Bachelor's degree or higher: 13%
Graduate or professional degree: 4.1%
Households with broadband: 100%
Cable, fiber or DSL: 62.9%
No internet access: 0%
Without health insurance: 0%
Limited-English households: 0%

Geography

City (USPS): Madison
State: Maryland
County: Dorchester County
Center point: 38.5088° N, 76.2398° W
Land area: 9.4 sq mi
Water area: 4.7 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Madison (unincorporated)22% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 21648

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
21669	Taylors Island, MD	4.4 mi	160	$116,500	$468,000
21677	Woolford, MD	4.4 mi	436	—	$328,600
21622	Church Creek, MD	7.8 mi	420	$68,750	$296,300
21613	Cambridge, MD	8.7 mi	17,926	$53,890	$283,900
20657	Lusby, MD	14 mi	20,699	$115,748	$333,500
21654	Oxford, MD	14 mi	1,179	$82,772	$840,000
21671	Tilghman, MD	14 mi	727	$45,125	$294,600
21673	Trappe, MD	14 mi	2,843	$68,194	$363,100
21662	Royal Oak, MD	14 mi	546	$137,404	$1,107,100
21652	Neavitt, MD	15 mi	155	$127,930	$504,600
21626	Crapo, MD	15 mi	256	—	$631,900
21634	Fishing Creek, MD	16 mi	465	$83,250	$232,300

Questions about 21648

What city is zip code 21648?

21648 is assigned to Madison, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 21648 in?

21648 is in Dorchester County, Maryland.

What is the population of 21648?

About 172 people live in 21648, according to the Census Bureau's American Community Survey.

What time zone is 21648 in?

21648 is in Eastern Time.

What zip codes are near 21648?

The closest zip codes to 21648 are 21669, 21677, 21622, 21613, 20657.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21648, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.